Electrically-operated automatic throwing-out-of-gear mechanism for braiding machines



ING OUT OF GEAR Dec. 7 1926.

' G. PERRON ELECTRICALLY OPERATED AUTOMATIC THROW 2 Sheets-Sheet 1MECHANISM FOR BRAIDING MACHINES Original Filed June THROWING OUT OF GEARG MACHINES Original Filed June 30, 1922 G. PERRON Dec. 7 1926ELECTRICALLY OPERATED AUTOMATIC MECHANISM FOR BRAIDIN Patented Dec. 7,1926.

GUSTAVE r'nanon, or PARIS, FRANCE.

ELECTRICALLY-OIEERATED AUTOMATIC THROWING-OUT-OF-GEAR MECHANISM FOR-BRAIDING MACHINES.

Original application filed June so, 1922, Serial No. 571,922, and inFrance July '5, 1921. Divided and this application filed November 24,"1923. Serial No. 676,814.

The present invention has for its object an lever 68 is pivoted, at 72,a plate 7 3 one end 55 electrically operated throwing out of gear 73 ofwhich can come within range of a mechanism for braiding machines inwhich finger 74 provided on the fixed element of the breaking of thethread causes through the coupling 50 and. the other end 73 of 5 anelectric relay, the working of a mechaniwhich strikes the. part 7 5 of alever 76 cal device securing the throwing out of gear. pivoted at 77 tothe part 70.

The present application is a division or my This lever 76 carries a softiron plate 78 Patent N 0. 1,558,039 granted on an applicaarrangedopposite an electro-magnet 79 and tion serial No. 571,922, filed June30, 1922. is controlled by a spring 80. Thelever 56 10 This device ischaracterized by the fact is always pulled upwards, intothe disenthat aprojection of the throwing out of gear gaged position, by a spring 81.In the en- 65 lever of the machineremains incontact with gaged positionof the lever 56, the latter is a nose onan intermediary lever and soholds in contact with a spring blade 82 carried by the throwing out ofgear lever in the en- 'theframe but insulated from the latter.

gaged position until, when the thread The conductors of theelectro-magnet breaks, a swinging part, released under the terminate oneat the spring 82 and the other 70 action of an electro-magnet, comes onthe at one of thepoles of any desired source of path of a rotating partof the driving pinion electricity. v

, which results in the throwing out of gear A metal ring 83 is mountedabove the lever leaving the engaged position and protable 18. of themachine concentrically with ducing the throwing out of gear of the-mathelatter, so that the tension levers -31 of, 75

. hine. the spindles 3' come into contact withthe Fig. 1 is afragmentary sectional view ilsame when the threads break. i

lustrating the present improvements; and This ring i insulated fro thmass or as V Fig. 2 is' a pe p iv V one larger body of the machine andconnected to the scale showing particularly the automatic other pole ofthe source of electricity.

stopping mechanism. .7 The'working'of the device is as followsr For thesake of clearness of the drawing, The electrical device formingrelaycom-.

I the spool holder of the spindle is supposed prises the ring 83,theelectro-magnet 79 and separated from the spindle foot and rotated thelever 76, thelightness of which is suf- 90 thereon. I p ficient toenable it to respond toany impulse; 85

The braiding machine comprises a frame 1 fromthe electro-magnet, howeverweak said in the shape of a cup on which are mounted impulse may be.

the spindle supporting and driving parts- The throwing out of gearmechanical "de-' 5 Said parts areidriven'by a pinion 48 keyed vicecomprises the parts 66, 67, 68, 73, 74.

on a vertical shaft. 49. On this latter is It receives the necessaryimpulse for the 90 a mounted one of the elements of a claw clutch th oing o t Qfgear f th d i i a t 50 the other element of which is carriedby 7 1 f th dri i g g fth hi th the device which transmits the drivingrelay device acting simply in order to permit ower to themachine. a themechanical device to receive the said On the drawing, the saiddevicecomprises impulse.

. I r V 95 two bevel pinions 51 and 52, the latter being When th th d fn f Tthe i dl secured to a short spindle 53 towhich 1s breaks, thetension lever 31 is no longer sub secured the driving pulley5 1. mittedto the action, or thethread and the,

These elements are supported sbya suitable spring 32 pulls violentlyback sa'idlever 31 part 55 secured to the frame. andpre'sses it againstthe circular rim 83. 100

The claw coupling 50 is controlled by The electric circuit containingthe, electromeans of a lever 56 pivoted at 57. magnet 79 is'then closedthrough th'e'ma'ss-of The lever 56 has a stud 66 which acts on themachine. c I 5.0 a rack or cam67 of a small lever 68. pivoted Theelectro-magn'et attracts, the lever-76' at 69 to a part 70 secured tothe frame of the part of whichmoves out ofthe path 0 the machine. Aspring 7lhas the tendency of they end 73 of the plate73. The "latter"always to bring back the lever 68 and to can then turn, thelever arm73-'beingn .uch keep it in -contact with the stud 66. To said greater inweight than .thezarm 73"a nd the.

about the pivot point 69. The part 67 is moved away from the stud 66 andthe lever 56 under the action of the spring 81 is turned in such amanner as to produce the disengagement of the claw coupling 50. In thismovement, the lever 56 leaves the contact of the spring 82 and thecircuit is broken; a cross bar 5% secured to the lever 06 turns theplate '2' and withdraws it from the action of the linger T4,

As the current has been broken by 56 going away from the spring 82, thespring 80 draws back the lever 76 to the position shown on the figurethe part being ready for locking the part- 73 of the lever 73. g

If, after having repaired the thread, the machine is thrown into gearagain, the lever 73 resumes the position shown in the, figure in which73 is locked on the nose 75 of the lever 76 and at'the same time thelever 56 is locked by the nose 6'? of 68 acting on the stud 66.

This device has the advantage that it acts immediately, no matter whatthe speed of the machine may be.

In fact the sensitiveness of the lever 7 6 is such that, as short as inabe the contact of the lever 31 with, the ring 88, the attraction of theelectro magnet on this lever is sufficient for producing the unlockingof 75 from 73 as the said '73" exerts on the part 7 6 of the lever 75only a light pressure independent from the mass of the heavy parts 50and 56 of the machine which are to move when the throwing out of geartakes place;

Moreover, as; soon as'the throwing out of gear is produced, the circuitis broken through the separationof 56 and 82, which allows the lever '76to resume its prior position and to automatically secure'the positioningof the throwing out of gear parts for a further operation. r

It is also to be noticed that the necessary power for the disengagementof the stud 66 from the projection 67 is furnished by the part 7 a ofthe driving mechanism itself, so that whatever may be the strength ofthe spring 81 forcing 66 against 67 the disengagement will be alwayssecured, the power producing said disengagement being itselfproportional to the driving of the machine.

What I claim is: V

I 1. In a braiding machine, in combination, adriving member, a drivenshaft, a clutch adapted to connect said member to said shaft, a leverengaging said clutch and biased'to move itto unclutching position, a

: v latch normally holding said lever and-clutch in clutching position,a normally inoperatlve connection between saiddriving member and latch,a normally deenergized electro-magnet controlling said connection, andmeans controlled by the breaking of a thread supplied to the machine forclosing the circuit of the electro-magnet, whereby upon energizat-ion ofsaid magnet the latch is connected to said driving member and isoperated thereby to release said lever and permit it to move the clutchto unclutching position.

2. In a braiding machine, in combination, a driving member, a drivenshaft, a clutch adapted to connect said member to said shaft, a leverengaging said clutch and biased.

to move. it to unclutching position, a pivoted latch engaging said leverand holding it in clutching position against the action of its biasingmeans, a finger'pivotcd to the free end of said latch, a cam projectionon said driving member, said finger adapted to extend into the path ofsaid projection, means normally holding said finger out of said path, anelectromagnet adapted when energized to release said finger, and meanscon-v trolled by the breaking of a thread supplied to the machine forclosing the circuit of said magnet, whereby when a thread breaks themagnet is energized and the finger is released and comes into the pathof said projection which engages the finger and positively moves thelatch from engagement with the lever, the latter moving under theinfluence of its biasing means to unclutching position.

3. In a braiding machine, in combination, a driving member, a drivenshaft disposed vertically, a clutch member sli-dable on said verticalshaft adapted'to clutch the latter to the driving member, a hand'leverhaving one end engaging said clutch member and tending to rotate on itsaxis in a direction to disengage said member from the drivin member, anarm pivoted at its upper end and having a shoulder engaging over aprojection on said lever to hold the lever in clutching position, afinger pivoted intermediate its ends to the lower end of said arm andhaving one end projecting in proximity to said driving member, an armpivoted at its upper end and having its lower said last mentioned arm,and means for closing the circuit of said electro-magnet 7 upon breakingof the thread supplied to the machine,-said hand lever having a memberattached thereto extending under said finger, whereby when saidleverafter having been released by the energization oflthe magnet is'restoredto clutching position the finger will be raised out of the pathofthe'cam projection.

In testimony whereof I aiiix' my signature.

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